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From: Fuad Tabba <tabba@google.com>
To: Quentin Perret <qperret@google.com>
Cc: maz@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com,
	suzuki.poulose@arm.com, catalin.marinas@arm.com, will@kernel.org,
	linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org,
	ardb@kernel.org, qwandor@google.com, dbrazdil@google.com,
	kernel-team@android.com
Subject: Re: [PATCH v3 17/21] KVM: arm64: Mark host bss and rodata section as shared
Date: Tue, 3 Aug 2021 07:02:42 +0200	[thread overview]
Message-ID: <CA+EHjTwfsA8Z+_dJzqjsBXJ_SSC55Bcxc6HQ_Q4OJDrqmk0Unw@mail.gmail.com> (raw)
In-Reply-To: <20210729132818.4091769-18-qperret@google.com>

Hi Quentin,

On Thu, Jul 29, 2021 at 3:29 PM Quentin Perret <qperret@google.com> wrote:
>
> As the hypervisor maps the host's .bss and .rodata sections in its
> stage-1, make sure to tag them as shared in hyp and host page-tables.
>
> But since the hypervisor relies on the presence of these mappings, we
> cannot let the host in complete control of the memory regions -- it
> must not unshare or donate them to another entity for example. To
> prevent this, let's transfer the ownership of those ranges to the
> hypervisor itself, and share the pages back with the host.
>
> Signed-off-by: Quentin Perret <qperret@google.com>
> ---
>  arch/arm64/kvm/hyp/nvhe/setup.c | 82 +++++++++++++++++++++++++++++----
>  1 file changed, 74 insertions(+), 8 deletions(-)
>
> diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
> index 0b574d106519..7f557b264f62 100644
> --- a/arch/arm64/kvm/hyp/nvhe/setup.c
> +++ b/arch/arm64/kvm/hyp/nvhe/setup.c
> @@ -58,6 +58,7 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
>  {
>         void *start, *end, *virt = hyp_phys_to_virt(phys);
>         unsigned long pgt_size = hyp_s1_pgtable_pages() << PAGE_SHIFT;
> +       enum kvm_pgtable_prot prot;
>         int ret, i;
>
>         /* Recreate the hyp page-table using the early page allocator */
> @@ -83,10 +84,6 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
>         if (ret)
>                 return ret;
>
> -       ret = pkvm_create_mappings(__start_rodata, __end_rodata, PAGE_HYP_RO);
> -       if (ret)
> -               return ret;
> -
>         ret = pkvm_create_mappings(__hyp_rodata_start, __hyp_rodata_end, PAGE_HYP_RO);
>         if (ret)
>                 return ret;
> @@ -95,10 +92,6 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
>         if (ret)
>                 return ret;
>
> -       ret = pkvm_create_mappings(__hyp_bss_end, __bss_stop, PAGE_HYP_RO);
> -       if (ret)
> -               return ret;
> -
>         ret = pkvm_create_mappings(virt, virt + size, PAGE_HYP);
>         if (ret)
>                 return ret;
> @@ -117,6 +110,24 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
>                         return ret;
>         }
>
> +       /*
> +        * Map the host's .bss and .rodata sections RO in the hypervisor, but
> +        * transfer the ownerhsip from the host to the hypervisor itself to
> +        * make sure it can't be donated or shared with another entity.

nit: ownerhsip -> ownership

> +        *
> +        * The ownership transtion requires matching changes in the host

nit: transtion -> transition

> +        * stage-2. This will done later (see finalize_host_mappings()) once the

nit: will done -> will be done

> +        * hyp_vmemmap is addressable.
> +        */
> +       prot = pkvm_mkstate(PAGE_HYP_RO, PKVM_PAGE_SHARED_OWNED);
> +       ret = pkvm_create_mappings(__start_rodata, __end_rodata, prot);
> +       if (ret)
> +               return ret;
> +
> +       ret = pkvm_create_mappings(__hyp_bss_end, __bss_stop, prot);

nit: for clarity, I wonder if it might be good to create an alias of
__hyp_bss_end as __bss_start or something. When it's been moved here,
it sticks out a bit more and makes the reader wonder about the
significance of __hyp_bss_end.

> +       if (ret)
> +               return ret;
> +
>         return 0;
>  }
>
> @@ -148,6 +159,57 @@ static void hpool_put_page(void *addr)
>         hyp_put_page(&hpool, addr);
>  }
>
> +static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
> +                                        kvm_pte_t *ptep,
> +                                        enum kvm_pgtable_walk_flags flag,
> +                                        void * const arg)
> +{
> +       enum kvm_pgtable_prot prot;
> +       enum pkvm_page_state state;
> +       kvm_pte_t pte = *ptep;
> +       phys_addr_t phys;
> +
> +       if (!kvm_pte_valid(pte))
> +               return 0;
> +
> +       if (level != (KVM_PGTABLE_MAX_LEVELS - 1))
> +               return -EINVAL;

I know that it's not in scope here, but I'm wondering whether we
should be checking for KVM_PTE_TYPE_PAGE instead of the level. Maybe
it would be good to have a helper somewhere for all these checks both
for clarity and to ensure that nothing has gone wrong with the pte.

> +
> +       phys = kvm_pte_to_phys(pte);
> +       if (!addr_is_memory(phys))
> +               return 0;
> +
> +       /*
> +        * Adjust the host stage-2 mappings to match the ownership attributes
> +        * configured in the hypervisor stage-1.
> +        */
> +       state = pkvm_getstate(kvm_pgtable_hyp_pte_prot(pte));
> +       switch (state) {
> +       case PKVM_PAGE_OWNED:
> +               return host_stage2_set_owner_locked(phys, phys + PAGE_SIZE, pkvm_hyp_id);
> +       case PKVM_PAGE_SHARED_OWNED:
> +               prot = pkvm_mkstate(KVM_PGTABLE_PROT_RWX, PKVM_PAGE_SHARED_BORROWED);
> +               break;
> +       case PKVM_PAGE_SHARED_BORROWED:
> +               prot = pkvm_mkstate(KVM_PGTABLE_PROT_RWX, PKVM_PAGE_SHARED_OWNED);
> +               break;
> +       default:
> +               return -EINVAL;
> +       }
> +
> +       return host_stage2_idmap_locked(phys, phys + PAGE_SIZE, prot);
> +}
> +
> +static int finalize_host_mappings(void)
> +{
> +       struct kvm_pgtable_walker walker = {
> +               .cb     = finalize_host_mappings_walker,
> +               .flags  = KVM_PGTABLE_WALK_LEAF,
> +       };
> +
> +       return kvm_pgtable_walk(&pkvm_pgtable, 0, BIT(pkvm_pgtable.ia_bits), &walker);
> +}
> +
>  void __noreturn __pkvm_init_finalise(void)
>  {
>         struct kvm_host_data *host_data = this_cpu_ptr(&kvm_host_data);
> @@ -167,6 +229,10 @@ void __noreturn __pkvm_init_finalise(void)
>         if (ret)
>                 goto out;
>
> +       ret = finalize_host_mappings();
> +       if (ret)
> +               goto out;
> +
>         pkvm_pgtable_mm_ops = (struct kvm_pgtable_mm_ops) {
>                 .zalloc_page = hyp_zalloc_hyp_page,
>                 .phys_to_virt = hyp_phys_to_virt,
> --
> 2.32.0.432.gabb21c7263-goog
>

Thanks,
/fuad

WARNING: multiple messages have this Message-ID
From: Fuad Tabba <tabba@google.com>
To: Quentin Perret <qperret@google.com>
Cc: kernel-team@android.com, qwandor@google.com, maz@kernel.org,
	linux-kernel@vger.kernel.org, catalin.marinas@arm.com,
	will@kernel.org, kvmarm@lists.cs.columbia.edu,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 17/21] KVM: arm64: Mark host bss and rodata section as shared
Date: Tue, 3 Aug 2021 07:02:42 +0200	[thread overview]
Message-ID: <CA+EHjTwfsA8Z+_dJzqjsBXJ_SSC55Bcxc6HQ_Q4OJDrqmk0Unw@mail.gmail.com> (raw)
In-Reply-To: <20210729132818.4091769-18-qperret@google.com>

Hi Quentin,

On Thu, Jul 29, 2021 at 3:29 PM Quentin Perret <qperret@google.com> wrote:
>
> As the hypervisor maps the host's .bss and .rodata sections in its
> stage-1, make sure to tag them as shared in hyp and host page-tables.
>
> But since the hypervisor relies on the presence of these mappings, we
> cannot let the host in complete control of the memory regions -- it
> must not unshare or donate them to another entity for example. To
> prevent this, let's transfer the ownership of those ranges to the
> hypervisor itself, and share the pages back with the host.
>
> Signed-off-by: Quentin Perret <qperret@google.com>
> ---
>  arch/arm64/kvm/hyp/nvhe/setup.c | 82 +++++++++++++++++++++++++++++----
>  1 file changed, 74 insertions(+), 8 deletions(-)
>
> diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
> index 0b574d106519..7f557b264f62 100644
> --- a/arch/arm64/kvm/hyp/nvhe/setup.c
> +++ b/arch/arm64/kvm/hyp/nvhe/setup.c
> @@ -58,6 +58,7 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
>  {
>         void *start, *end, *virt = hyp_phys_to_virt(phys);
>         unsigned long pgt_size = hyp_s1_pgtable_pages() << PAGE_SHIFT;
> +       enum kvm_pgtable_prot prot;
>         int ret, i;
>
>         /* Recreate the hyp page-table using the early page allocator */
> @@ -83,10 +84,6 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
>         if (ret)
>                 return ret;
>
> -       ret = pkvm_create_mappings(__start_rodata, __end_rodata, PAGE_HYP_RO);
> -       if (ret)
> -               return ret;
> -
>         ret = pkvm_create_mappings(__hyp_rodata_start, __hyp_rodata_end, PAGE_HYP_RO);
>         if (ret)
>                 return ret;
> @@ -95,10 +92,6 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
>         if (ret)
>                 return ret;
>
> -       ret = pkvm_create_mappings(__hyp_bss_end, __bss_stop, PAGE_HYP_RO);
> -       if (ret)
> -               return ret;
> -
>         ret = pkvm_create_mappings(virt, virt + size, PAGE_HYP);
>         if (ret)
>                 return ret;
> @@ -117,6 +110,24 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
>                         return ret;
>         }
>
> +       /*
> +        * Map the host's .bss and .rodata sections RO in the hypervisor, but
> +        * transfer the ownerhsip from the host to the hypervisor itself to
> +        * make sure it can't be donated or shared with another entity.

nit: ownerhsip -> ownership

> +        *
> +        * The ownership transtion requires matching changes in the host

nit: transtion -> transition

> +        * stage-2. This will done later (see finalize_host_mappings()) once the

nit: will done -> will be done

> +        * hyp_vmemmap is addressable.
> +        */
> +       prot = pkvm_mkstate(PAGE_HYP_RO, PKVM_PAGE_SHARED_OWNED);
> +       ret = pkvm_create_mappings(__start_rodata, __end_rodata, prot);
> +       if (ret)
> +               return ret;
> +
> +       ret = pkvm_create_mappings(__hyp_bss_end, __bss_stop, prot);

nit: for clarity, I wonder if it might be good to create an alias of
__hyp_bss_end as __bss_start or something. When it's been moved here,
it sticks out a bit more and makes the reader wonder about the
significance of __hyp_bss_end.

> +       if (ret)
> +               return ret;
> +
>         return 0;
>  }
>
> @@ -148,6 +159,57 @@ static void hpool_put_page(void *addr)
>         hyp_put_page(&hpool, addr);
>  }
>
> +static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
> +                                        kvm_pte_t *ptep,
> +                                        enum kvm_pgtable_walk_flags flag,
> +                                        void * const arg)
> +{
> +       enum kvm_pgtable_prot prot;
> +       enum pkvm_page_state state;
> +       kvm_pte_t pte = *ptep;
> +       phys_addr_t phys;
> +
> +       if (!kvm_pte_valid(pte))
> +               return 0;
> +
> +       if (level != (KVM_PGTABLE_MAX_LEVELS - 1))
> +               return -EINVAL;

I know that it's not in scope here, but I'm wondering whether we
should be checking for KVM_PTE_TYPE_PAGE instead of the level. Maybe
it would be good to have a helper somewhere for all these checks both
for clarity and to ensure that nothing has gone wrong with the pte.

> +
> +       phys = kvm_pte_to_phys(pte);
> +       if (!addr_is_memory(phys))
> +               return 0;
> +
> +       /*
> +        * Adjust the host stage-2 mappings to match the ownership attributes
> +        * configured in the hypervisor stage-1.
> +        */
> +       state = pkvm_getstate(kvm_pgtable_hyp_pte_prot(pte));
> +       switch (state) {
> +       case PKVM_PAGE_OWNED:
> +               return host_stage2_set_owner_locked(phys, phys + PAGE_SIZE, pkvm_hyp_id);
> +       case PKVM_PAGE_SHARED_OWNED:
> +               prot = pkvm_mkstate(KVM_PGTABLE_PROT_RWX, PKVM_PAGE_SHARED_BORROWED);
> +               break;
> +       case PKVM_PAGE_SHARED_BORROWED:
> +               prot = pkvm_mkstate(KVM_PGTABLE_PROT_RWX, PKVM_PAGE_SHARED_OWNED);
> +               break;
> +       default:
> +               return -EINVAL;
> +       }
> +
> +       return host_stage2_idmap_locked(phys, phys + PAGE_SIZE, prot);
> +}
> +
> +static int finalize_host_mappings(void)
> +{
> +       struct kvm_pgtable_walker walker = {
> +               .cb     = finalize_host_mappings_walker,
> +               .flags  = KVM_PGTABLE_WALK_LEAF,
> +       };
> +
> +       return kvm_pgtable_walk(&pkvm_pgtable, 0, BIT(pkvm_pgtable.ia_bits), &walker);
> +}
> +
>  void __noreturn __pkvm_init_finalise(void)
>  {
>         struct kvm_host_data *host_data = this_cpu_ptr(&kvm_host_data);
> @@ -167,6 +229,10 @@ void __noreturn __pkvm_init_finalise(void)
>         if (ret)
>                 goto out;
>
> +       ret = finalize_host_mappings();
> +       if (ret)
> +               goto out;
> +
>         pkvm_pgtable_mm_ops = (struct kvm_pgtable_mm_ops) {
>                 .zalloc_page = hyp_zalloc_hyp_page,
>                 .phys_to_virt = hyp_phys_to_virt,
> --
> 2.32.0.432.gabb21c7263-goog
>

Thanks,
/fuad
_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

WARNING: multiple messages have this Message-ID
From: Fuad Tabba <tabba@google.com>
To: Quentin Perret <qperret@google.com>
Cc: maz@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com,
	 suzuki.poulose@arm.com, catalin.marinas@arm.com,
	will@kernel.org,  linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu,  linux-kernel@vger.kernel.org,
	ardb@kernel.org, qwandor@google.com,  dbrazdil@google.com,
	kernel-team@android.com
Subject: Re: [PATCH v3 17/21] KVM: arm64: Mark host bss and rodata section as shared
Date: Tue, 3 Aug 2021 07:02:42 +0200	[thread overview]
Message-ID: <CA+EHjTwfsA8Z+_dJzqjsBXJ_SSC55Bcxc6HQ_Q4OJDrqmk0Unw@mail.gmail.com> (raw)
In-Reply-To: <20210729132818.4091769-18-qperret@google.com>

Hi Quentin,

On Thu, Jul 29, 2021 at 3:29 PM Quentin Perret <qperret@google.com> wrote:
>
> As the hypervisor maps the host's .bss and .rodata sections in its
> stage-1, make sure to tag them as shared in hyp and host page-tables.
>
> But since the hypervisor relies on the presence of these mappings, we
> cannot let the host in complete control of the memory regions -- it
> must not unshare or donate them to another entity for example. To
> prevent this, let's transfer the ownership of those ranges to the
> hypervisor itself, and share the pages back with the host.
>
> Signed-off-by: Quentin Perret <qperret@google.com>
> ---
>  arch/arm64/kvm/hyp/nvhe/setup.c | 82 +++++++++++++++++++++++++++++----
>  1 file changed, 74 insertions(+), 8 deletions(-)
>
> diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
> index 0b574d106519..7f557b264f62 100644
> --- a/arch/arm64/kvm/hyp/nvhe/setup.c
> +++ b/arch/arm64/kvm/hyp/nvhe/setup.c
> @@ -58,6 +58,7 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
>  {
>         void *start, *end, *virt = hyp_phys_to_virt(phys);
>         unsigned long pgt_size = hyp_s1_pgtable_pages() << PAGE_SHIFT;
> +       enum kvm_pgtable_prot prot;
>         int ret, i;
>
>         /* Recreate the hyp page-table using the early page allocator */
> @@ -83,10 +84,6 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
>         if (ret)
>                 return ret;
>
> -       ret = pkvm_create_mappings(__start_rodata, __end_rodata, PAGE_HYP_RO);
> -       if (ret)
> -               return ret;
> -
>         ret = pkvm_create_mappings(__hyp_rodata_start, __hyp_rodata_end, PAGE_HYP_RO);
>         if (ret)
>                 return ret;
> @@ -95,10 +92,6 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
>         if (ret)
>                 return ret;
>
> -       ret = pkvm_create_mappings(__hyp_bss_end, __bss_stop, PAGE_HYP_RO);
> -       if (ret)
> -               return ret;
> -
>         ret = pkvm_create_mappings(virt, virt + size, PAGE_HYP);
>         if (ret)
>                 return ret;
> @@ -117,6 +110,24 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
>                         return ret;
>         }
>
> +       /*
> +        * Map the host's .bss and .rodata sections RO in the hypervisor, but
> +        * transfer the ownerhsip from the host to the hypervisor itself to
> +        * make sure it can't be donated or shared with another entity.

nit: ownerhsip -> ownership

> +        *
> +        * The ownership transtion requires matching changes in the host

nit: transtion -> transition

> +        * stage-2. This will done later (see finalize_host_mappings()) once the

nit: will done -> will be done

> +        * hyp_vmemmap is addressable.
> +        */
> +       prot = pkvm_mkstate(PAGE_HYP_RO, PKVM_PAGE_SHARED_OWNED);
> +       ret = pkvm_create_mappings(__start_rodata, __end_rodata, prot);
> +       if (ret)
> +               return ret;
> +
> +       ret = pkvm_create_mappings(__hyp_bss_end, __bss_stop, prot);

nit: for clarity, I wonder if it might be good to create an alias of
__hyp_bss_end as __bss_start or something. When it's been moved here,
it sticks out a bit more and makes the reader wonder about the
significance of __hyp_bss_end.

> +       if (ret)
> +               return ret;
> +
>         return 0;
>  }
>
> @@ -148,6 +159,57 @@ static void hpool_put_page(void *addr)
>         hyp_put_page(&hpool, addr);
>  }
>
> +static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
> +                                        kvm_pte_t *ptep,
> +                                        enum kvm_pgtable_walk_flags flag,
> +                                        void * const arg)
> +{
> +       enum kvm_pgtable_prot prot;
> +       enum pkvm_page_state state;
> +       kvm_pte_t pte = *ptep;
> +       phys_addr_t phys;
> +
> +       if (!kvm_pte_valid(pte))
> +               return 0;
> +
> +       if (level != (KVM_PGTABLE_MAX_LEVELS - 1))
> +               return -EINVAL;

I know that it's not in scope here, but I'm wondering whether we
should be checking for KVM_PTE_TYPE_PAGE instead of the level. Maybe
it would be good to have a helper somewhere for all these checks both
for clarity and to ensure that nothing has gone wrong with the pte.

> +
> +       phys = kvm_pte_to_phys(pte);
> +       if (!addr_is_memory(phys))
> +               return 0;
> +
> +       /*
> +        * Adjust the host stage-2 mappings to match the ownership attributes
> +        * configured in the hypervisor stage-1.
> +        */
> +       state = pkvm_getstate(kvm_pgtable_hyp_pte_prot(pte));
> +       switch (state) {
> +       case PKVM_PAGE_OWNED:
> +               return host_stage2_set_owner_locked(phys, phys + PAGE_SIZE, pkvm_hyp_id);
> +       case PKVM_PAGE_SHARED_OWNED:
> +               prot = pkvm_mkstate(KVM_PGTABLE_PROT_RWX, PKVM_PAGE_SHARED_BORROWED);
> +               break;
> +       case PKVM_PAGE_SHARED_BORROWED:
> +               prot = pkvm_mkstate(KVM_PGTABLE_PROT_RWX, PKVM_PAGE_SHARED_OWNED);
> +               break;
> +       default:
> +               return -EINVAL;
> +       }
> +
> +       return host_stage2_idmap_locked(phys, phys + PAGE_SIZE, prot);
> +}
> +
> +static int finalize_host_mappings(void)
> +{
> +       struct kvm_pgtable_walker walker = {
> +               .cb     = finalize_host_mappings_walker,
> +               .flags  = KVM_PGTABLE_WALK_LEAF,
> +       };
> +
> +       return kvm_pgtable_walk(&pkvm_pgtable, 0, BIT(pkvm_pgtable.ia_bits), &walker);
> +}
> +
>  void __noreturn __pkvm_init_finalise(void)
>  {
>         struct kvm_host_data *host_data = this_cpu_ptr(&kvm_host_data);
> @@ -167,6 +229,10 @@ void __noreturn __pkvm_init_finalise(void)
>         if (ret)
>                 goto out;
>
> +       ret = finalize_host_mappings();
> +       if (ret)
> +               goto out;
> +
>         pkvm_pgtable_mm_ops = (struct kvm_pgtable_mm_ops) {
>                 .zalloc_page = hyp_zalloc_hyp_page,
>                 .phys_to_virt = hyp_phys_to_virt,
> --
> 2.32.0.432.gabb21c7263-goog
>

Thanks,
/fuad

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2021-08-03  5:03 UTC|newest]

Thread overview: 135+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-29 13:27 [PATCH v3 00/21] Track shared pages at EL2 in protected mode Quentin Perret
2021-07-29 13:27 ` Quentin Perret
2021-07-29 13:27 ` Quentin Perret
2021-07-29 13:27 ` [PATCH v3 01/21] KVM: arm64: Add hyp_spin_is_locked() for basic locking assertions at EL2 Quentin Perret
2021-07-29 13:27   ` Quentin Perret
2021-07-29 13:27   ` Quentin Perret
2021-07-29 13:27 ` [PATCH v3 02/21] KVM: arm64: Introduce hyp_assert_lock_held() Quentin Perret
2021-07-29 13:27   ` Quentin Perret
2021-07-29 13:27   ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 03/21] KVM: arm64: Provide the host_stage2_try() helper macro Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02  9:36   ` Fuad Tabba
2021-08-02  9:36     ` Fuad Tabba
2021-08-02  9:36     ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 04/21] KVM: arm64: Introduce helper to retrieve a PTE and its level Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 05/21] KVM: arm64: Expose page-table helpers Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 06/21] KVM: arm64: Optimize host memory aborts Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02  9:37   ` Fuad Tabba
2021-08-02  9:37     ` Fuad Tabba
2021-08-02  9:37     ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 07/21] KVM: arm64: Rename KVM_PTE_LEAF_ATTR_S2_IGNORED Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02  9:37   ` Fuad Tabba
2021-08-02  9:37     ` Fuad Tabba
2021-08-02  9:37     ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 08/21] KVM: arm64: Don't overwrite software bits with owner id Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02  9:38   ` Fuad Tabba
2021-08-02  9:38     ` Fuad Tabba
2021-08-02  9:38     ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 09/21] KVM: arm64: Tolerate re-creating hyp mappings to set software bits Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02  9:50   ` Fuad Tabba
2021-08-02  9:50     ` Fuad Tabba
2021-08-02  9:50     ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 10/21] KVM: arm64: Enable forcing page-level stage-2 mappings Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02  9:49   ` Fuad Tabba
2021-08-02  9:49     ` Fuad Tabba
2021-08-02  9:49     ` Fuad Tabba
2021-08-03 10:13     ` Quentin Perret
2021-08-03 10:13       ` Quentin Perret
2021-08-03 10:13       ` Quentin Perret
2021-08-03 10:43       ` Fuad Tabba
2021-08-03 10:43         ` Fuad Tabba
2021-08-03 10:43         ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 11/21] KVM: arm64: Allow populating software bits Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 12/21] KVM: arm64: Add helpers to tag shared pages in SW bits Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02 10:30   ` Fuad Tabba
2021-08-02 10:30     ` Fuad Tabba
2021-08-02 10:30     ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 13/21] KVM: arm64: Expose host stage-2 manipulation helpers Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02 11:13   ` Fuad Tabba
2021-08-02 11:13     ` Fuad Tabba
2021-08-02 11:13     ` Fuad Tabba
2021-08-03 10:20     ` Quentin Perret
2021-08-03 10:20       ` Quentin Perret
2021-08-03 10:20       ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 14/21] KVM: arm64: Expose pkvm_hyp_id Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 15/21] KVM: arm64: Introduce addr_is_memory() Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02 14:52   ` Fuad Tabba
2021-08-02 14:52     ` Fuad Tabba
2021-08-02 14:52     ` Fuad Tabba
2021-08-03 10:23     ` Quentin Perret
2021-08-03 10:23       ` Quentin Perret
2021-08-03 10:23       ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 16/21] KVM: arm64: Enable retrieving protections attributes of PTEs Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02 14:52   ` Fuad Tabba
2021-08-02 14:52     ` Fuad Tabba
2021-08-02 14:52     ` Fuad Tabba
2021-08-03 10:24     ` Quentin Perret
2021-08-03 10:24       ` Quentin Perret
2021-08-03 10:24       ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 17/21] KVM: arm64: Mark host bss and rodata section as shared Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-03  5:02   ` Fuad Tabba [this message]
2021-08-03  5:02     ` Fuad Tabba
2021-08-03  5:02     ` Fuad Tabba
2021-08-03 10:34     ` Quentin Perret
2021-08-03 10:34       ` Quentin Perret
2021-08-03 10:34       ` Quentin Perret
2021-08-03 10:54       ` Fuad Tabba
2021-08-03 10:54         ` Fuad Tabba
2021-08-03 10:54         ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 18/21] KVM: arm64: Remove __pkvm_mark_hyp Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 19/21] KVM: arm64: Refactor protected nVHE stage-1 locking Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-03  5:31   ` Fuad Tabba
2021-08-03  5:31     ` Fuad Tabba
2021-08-03  5:31     ` Fuad Tabba
2021-08-03 10:37     ` Quentin Perret
2021-08-03 10:37       ` Quentin Perret
2021-08-03 10:37       ` Quentin Perret
2021-08-03 10:51       ` Fuad Tabba
2021-08-03 10:51         ` Fuad Tabba
2021-08-03 10:51         ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 20/21] KVM: arm64: Restrict EL2 stage-1 changes in protected mode Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-03  8:22   ` Fuad Tabba
2021-08-03  8:22     ` Fuad Tabba
2021-08-03  8:22     ` Fuad Tabba
2021-08-03 10:43     ` Quentin Perret
2021-08-03 10:43       ` Quentin Perret
2021-08-03 10:43       ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 21/21] KVM: arm64: Make __pkvm_create_mappings static Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret

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